Description:Delight your mind and eyes with this 3 dimensional brainteaser that will bend your brain! When you've pieced its interlocking plastic pieces together (be ready for a challenge), its glossy, sleek design will impress all who see it. 48 Pieces. Ages 12 and Up.

Warning: Choking Hazard - Contains small parts not suitable for children under 3 years.

Bummer it has no directions or clues of some typeMy 9.5 year old does puzzles for 12+ but he's challenged with this one. It's all uniform in color/shade so it makes it very difficult to put together.
AreYouGame.com says:
The manufacture has a full list of instructions on their website:
http://www.ugames.com/instructions.asp--Jul from CA

Challenging Skull PuzzleThis puzzle made my head hurt the most by far out of the three 3D puzzles I've built so far (Sapphire gemstone - level 1, Treasure Chest - Level 2 and Skull - Level 2)! It took me 3 hours to build from start to finish, including knocking the skull to the ground, shattering most of my work to that point, when it was 3/4 of the way finished. I loved the challenge of this puzzle and recommend it to anyone who has done a level 1 puzzle first.
Can't wait to put together the piggy bank, castle and Elmo puzzles. Also I have ordered a yellow star, blue moon, puppy dog, red heart, red rose and red panda and can't wait to build them too!--Carl from Schaumburg, IL

I am 70 and it is too hard to put togetherHow bout a chart or form showing us old folks how piece this 3D puzzle together. I agree with all the other comments.--Gary from Hayesville, NC

love the skull, even though it took me 2 and a half hours to put it togetherAfter I found instructions online..... that's the way I put it together....... thank god.....
--duane from sparta, n.c.

wish it came with instructionsi like this puzzle i just cant figure out how to put it together i really wish it came with a cheat sheet or something or maybe just tell me which piece is like the first one so i know where to go from there but nonetheless its a good product--steph from indiana

Great puzzle. Lots of fun.I had lots of fun putting the skull together. Can't wait to get another, it was a fun challenge. Loved it!--Julie from Ames,Ia

This One Was Fun !This one went together basically the same way that the clear Skull went together. Except this one was a tad difficult for me. But the finished product looks cool. Not really into skulls, but this also makes a nice addition to my collection.--Karen from New Hampshire

Fun PuzzleThis one was kinda difficult, but not too much. I already had done the clear skull, but when I got the clear skull, it wasn't really the one I really wanted... I really wanted the black one. So when I got this one, I was really happy. This was fun to work on. I did this with no help from my Husband. This one took me 1 - 2 hours to complete. The finished product looks awesome. And, like every other puzzle I've completed, makes a nice addition to my puzzle collection !--Karen from New Hampshire

Double Team swap effort and we completed it!My son and I worked on this. He began and I went on from his "stuck point". Fresh eyes and a new outlook is what it takes to complete it, no internet instructions or youtube videos necessary.--Robert from New Jersey

Excellent3D Crystal Puzzle Skull Level 2 age 12+ I'm 57 and can't figure it out, very nice challege. Keeping me busy and hurting my brain. I think it's great. Wish it had a sheet to show how to get it together.--Steve from Florida

Cool PuzzleMy 15 year old daughter is going through a goth phase right now and really enjoyed putting this skull together. We found the instructions on the creator's website. Very nice.--Pamela from VA

Great puzzlesIt started out hard. Don't give a cheat sheet. Determination and dilegence are the key. Building this and seeing it complete, knowing I did without cheating was totally worth it. I will be buying more.--Michael from Dodge City,KS

Kept my son busy...Kept our 13 year old Aspie son busy for 3 days! I think he gave up, until I started to build it today! :) It took us a total of maybe 1 1/2 hours to build! Great challenge!!--Tina from Las Vegas

Love it!This was by far the hardest puzzle ive ever attempted to put together. but thats what i love most. flat puzzles are no challenge but this was very hard. For all you that say you wish there was a sheet that told you how to put it together, there are many websites that have instructions. my fav was http://www.ugames.com/rules/bepuzzled/CrystalPuzzles/30944_skull_clear_instructions.pdf It shows you every piece in order and you just put them together in the order it shows--Boles from Tn